40215097499 has 8 divisors (see below), whose sum is σ = 41575520928. Its totient is φ = 38869070400.

The previous prime is 40215097451. The next prime is 40215097519. The reversal of 40215097499 is 99479051204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40215097499 - 2¹⁶ = 40215031963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40215097199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3593402 + ... + 3604575.

It is an arithmetic number, because the mean of its divisors is an integer number (5196940116).

Almost surely, 2^40215097499 is an apocalyptic number.

40215097499 is a deficient number, since it is larger than the sum of its proper divisors (1360423429).

40215097499 is a wasteful number, since it uses less digits than its factorization.

40215097499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198165.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 40215097499 in words is "forty billion, two hundred fifteen million, ninety-seven thousand, four hundred ninety-nine".